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pydimarri@gmail.com from Vibgyorhigh, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Rajesh Ranjan from St Gregorios High School, Mumbai
Class : Class 6

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Navneeth Reejish from Yuvabharati International school, Singapore
Subject :NSO    Class : Class 4

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Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

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Vaikunth Gajjar from R N Podar School, Mumbai
Subject :NSO    Class : Class 2

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SUDAY.GHAI from DPS , NOIDA
Subject :NSO    Class : Class 3

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Agnimitra Gupta from south point school, Kolkata
Subject :NSO    Class : Class 4

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Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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varun moorthy from Presidency School, bangalore
Subject :NSO    Class : Class 6

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Naveen Kumar Singh from AIR FORCE SCHOOL, TEZPUR
Class : Class 6
298

Ans 2:

Naveen Kumar Singh from AIR FORCE SCHOOL, TEZPUR
Class : Class 6
ANS IS 17 * 17

Ans 3:

Yoovanup from Hansraj Model School, New Delhi
Class : Class 6
It is the square of the numbers.

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Aaryahi Kawle from Chatrabhuj Narsee School, Mumbai
Subject :NSO    Class : Class 7

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Aaryahi Kawle from Chatrabhuj Narsee School, Mumbai
Subject :NSO    Class : Class 7

Three test tubes are set up as shown. The indicator used here changes from red to yellow when exposed to increased levels of carbon dioxide. At the start of the experiment, the indicator in each test tube was red.


What will be the colour of the indicator in each test tube after two hours?

a b c
A Yellow Yellow Red
B Red Yellow Red
C Yellow Red Red
D Yellow Yellow Yellow


Please explain how the test tube with insects will turn yellow.

Ans 1:

Ayushi Agrawal from Bal Bharati Public School Pitampura, New Delhi
Class : Class 9
It will be yellow because of Carbon dioxide released by respiration of insects.

Ans 2:

JAYANT TATIPAMULA from Ganges valley school, hyd
Class : Class 7
Anantha Narayanan M S from CHIREC International School, Kondapur, Hyderabad, HyderabadClass : >Class 7 2 months agoThe indicator in the leaves will also turn yellow as respiration and photosynthesis occur at the same time during the day. but they did not specify that it was during the day

Ans 3:

Anantha Narayanan M S from NPS Goaplapuram Chennai, Chennai
Class : Class 8
The indicator in the leaves will also turn yellow as respiration and photosynthesis occur at the same time during the day.

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K.B.SUHAS from CHINMAYA VIDYALAYA, Chennai
Subject :NSO    Class : Class 2

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Anamkhan Mulla from Navrachna Sama, Vadodara
Class : Class 4
HI, If you unscramble SECIIUDOL it gives DELICIOUS. Thanks, Anamkhan

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RISHI DARDA from WOODRIDGE HIGH, AURANGABAD
Subject :NSO    Class : Class 6

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